PSLE At first, Hazel had 86 stamps and some cards. After she gave away 42 stamps and 25% of the cards, she had a total of 65 stamps and cards. How many cards did Hazel give away?
|
Stamps |
Cards |
Total |
Before |
86 |
4 u |
|
Change |
- 42 |
- 1 u |
|
After |
44 |
3 u |
65 |
25% =
25100 =
14 Number of stamps that Hazel left
= 86 - 42
= 44
Number of cards that Hazel left
= 65 - 44
= 21
3 u = 21
1 u = 21 ÷ 3 = 7
Number of cards that Hazel gave away
= 1 u
= 1 x 7
= 7
Answer(s): 7